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.TH GETSOCKNAME 3XNET "Jun 10, 2002"
.SH NAME
getsockname \- get the socket name
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR ... ] \fIfile\fR ... \fB-lxnet\fR [ \fIlibrary\fR ... ]
#include <sys/socket.h>

\fBint\fR \fBgetsockname\fR(\fBint\fR \fIsocket\fR, \fBstruct sockaddr *restrict\fR \fIaddress\fR,
     \fBsocklen_t *restrict\fR \fIaddress_len\fR);
.fi

.SH DESCRIPTION
.LP
The \fBgetsockname()\fR function retrieves the locally-bound name of the
specified socket, stores this address in the \fBsockaddr\fR structure pointed
to by the \fIaddress\fR argument, and stores the length of this address in the
object pointed to by the \fIaddress_len\fR argument.
.sp
.LP
If the actual length of the address is greater than the length of the supplied
\fBsockaddr\fR structure, the stored address will be truncated.
.sp
.LP
If the socket has not been bound to a local name, the value stored in the
object pointed to by \fIaddress\fR is unspecified.
.SH RETURN VALUES
.LP
Upon successful completion, 0 is returned, the \fIaddress\fR argument points to
the address of the socket, and the \fIaddress_len\fR argument points to the
length of the address.  Otherwise, \(mi1 is returned and \fBerrno\fR is set to
indicate the error.
.SH ERRORS
.LP
The \fBgetsockname()\fR function will fail:
.sp
.ne 2
.na
\fB\fBEBADF\fR\fR
.ad
.RS 14n
The \fIsocket\fR argument is not a valid file descriptor.
.RE

.sp
.ne 2
.na
\fB\fBEFAULT\fR\fR
.ad
.RS 14n
The  \fIaddress\fR or  \fIaddress_len\fR parameter can not be accessed or
written.
.RE

.sp
.ne 2
.na
\fB\fBENOTSOCK\fR\fR
.ad
.RS 14n
The \fIsocket\fR argument does not refer to a socket.
.RE

.sp
.ne 2
.na
\fB\fBEOPNOTSUPP\fR\fR
.ad
.RS 14n
The operation is not supported for this socket's protocol.
.RE

.sp
.LP
The \fBgetsockname()\fR function may fail if:
.sp
.ne 2
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 11n
The socket has been shut down.
.RE

.sp
.ne 2
.na
\fB\fBENOBUFS\fR\fR
.ad
.RS 11n
Insufficient resources were available in the system to complete the call.
.RE

.sp
.ne 2
.na
\fB\fBENOSR\fR\fR
.ad
.RS 11n
There were insufficient STREAMS resources available for the operation to
complete.
.RE

.SH ATTRIBUTES
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Standard
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.LP
.BR sockaddr (3SOCKET),
\fBaccept\fR(3XNET), \fBbind\fR(3XNET), \fBgetpeername\fR(3XNET),
\fBsocket\fR(3XNET) \fBattributes\fR(7),
.BR standards (7)
